diff --git a/src/core/hle/service/apt/apt.cpp b/src/core/hle/service/apt/apt.cpp
index 0109fa2b26..9cfa9efde9 100644
--- a/src/core/hle/service/apt/apt.cpp
+++ b/src/core/hle/service/apt/apt.cpp
@@ -34,8 +34,6 @@ static bool shared_font_loaded = false;
static bool shared_font_relocated = false;
static Kernel::SharedPtr<Kernel::Mutex> lock;
-static Kernel::SharedPtr<Kernel::Event> notification_event; ///< APT notification event
-static Kernel::SharedPtr<Kernel::Event> parameter_event; ///< APT parameter event
static u32 cpu_percent; ///< CPU time available to the running application
@@ -44,32 +42,164 @@ static u8 unknown_ns_state_field;
static ScreencapPostPermission screen_capture_post_permission;
-/// Parameter data to be returned in the next call to Glance/ReceiveParameter
+/// Parameter data to be returned in the next call to Glance/ReceiveParameter.
+/// TODO(Subv): Use std::optional once we migrate to C++17.
static boost::optional<MessageParameter> next_parameter;
+enum class AppletPos { Application = 0, Library = 1, System = 2, SysLibrary = 3, Resident = 4 };
+
+static constexpr size_t NumAppletSlot = 4;
+
+enum class AppletSlot : u8 {
+ Application,
+ SystemApplet,
+ HomeMenu,
+ LibraryApplet,
+
+ // An invalid tag
+ Error,
+};
+
+struct AppletSlotData {
+ AppletId applet_id;
+ AppletSlot slot;
+ bool registered;
+ u32 attributes;
+ Kernel::SharedPtr<Kernel::Event> notification_event;
+ Kernel::SharedPtr<Kernel::Event> parameter_event;
+};
+
+// Holds data about the concurrently running applets in the system.
+static std::array<AppletSlotData, NumAppletSlot> applet_slots = {};
+
+union AppletAttributes {
+ u32 raw;
+
+ BitField<0, 3, u32> applet_pos;
+
+ AppletAttributes(u32 attributes) : raw(attributes) {}
+};
+
+// Helper function to extract the AppletPos from the lower bits of the applet attributes
+static u32 GetAppletPos(AppletAttributes attributes) {
+ return attributes.applet_pos;
+}
+
+// This overload returns nullptr if no applet with the specified id has been started.
+static AppletSlotData* GetAppletSlotData(AppletId id) {
+ auto GetSlot = [](AppletSlot slot) -> AppletSlotData* {
+ return &applet_slots[static_cast<size_t>(slot)];
+ };
+
+ if (id == AppletId::Application) {
+ auto* slot = GetSlot(AppletSlot::Application);
+ if (slot->applet_id != AppletId::None)
+ return slot;
+
+ return nullptr;
+ }
+
+ if (id == AppletId::AnySystemApplet) {
+ auto* system_slot = GetSlot(AppletSlot::SystemApplet);
+ if (system_slot->applet_id != AppletId::None)
+ return system_slot;
+
+ // The Home Menu is also a system applet, but it lives in its own slot to be able to run
+ // concurrently with other system applets.
+ auto* home_slot = GetSlot(AppletSlot::HomeMenu);
+ if (home_slot->applet_id != AppletId::None)
+ return home_slot;
+
+ return nullptr;
+ }
+
+ if (id == AppletId::AnyLibraryApplet || id == AppletId::AnySysLibraryApplet) {
+ auto* slot = GetSlot(AppletSlot::LibraryApplet);
+ if (slot->applet_id == AppletId::None)
+ return nullptr;
+
+ u32 applet_pos = GetAppletPos(slot->attributes);
+
+ if (id == AppletId::AnyLibraryApplet && applet_pos == static_cast<u32>(AppletPos::Library))
+ return slot;
+
+ if (id == AppletId::AnySysLibraryApplet &&
+ applet_pos == static_cast<u32>(AppletPos::SysLibrary))
+ return slot;
+
+ return nullptr;
+ }
+
+ if (id == AppletId::HomeMenu || id == AppletId::AlternateMenu) {
+ auto* slot = GetSlot(AppletSlot::HomeMenu);
+ if (slot->applet_id != AppletId::None)
+ return slot;
+
+ return nullptr;
+ }
+
+ for (auto& slot : applet_slots) {
+ if (slot.applet_id == id)
+ return &slot;
+ }
+
+ return nullptr;
+}
+
+static AppletSlotData* GetAppletSlotData(u32 attributes) {
+ // Mapping from AppletPos to AppletSlot
+ static constexpr std::array<AppletSlot, 6> applet_position_slots = {
+ AppletSlot::Application, AppletSlot::LibraryApplet, AppletSlot::SystemApplet,
+ AppletSlot::LibraryApplet, AppletSlot::Error, AppletSlot::LibraryApplet};
+
+ u32 applet_pos = GetAppletPos(attributes);
+ if (applet_pos >= applet_position_slots.size())
+ return nullptr;
+
+ AppletSlot slot = applet_position_slots[applet_pos];
+
+ if (slot == AppletSlot::Error)
+ return nullptr;
+
+ return &applet_slots[static_cast<size_t>(slot)];
+}
+
void SendParameter(const MessageParameter& parameter) {
next_parameter = parameter;
- // Signal the event to let the application know that a new parameter is ready to be read
- parameter_event->Signal();
+ // Signal the event to let the receiver know that a new parameter is ready to be read
+ auto* const slot_data = GetAppletSlotData(static_cast<AppletId>(parameter.destination_id));
+ ASSERT(slot_data);
+
+ slot_data->parameter_event->Signal();
}
void Initialize(Service::Interface* self) {
IPC::RequestParser rp(Kernel::GetCommandBuffer(), 0x2, 2, 0); // 0x20080
u32 app_id = rp.Pop<u32>();
- u32 flags = rp.Pop<u32>();
+ u32 attributes = rp.Pop<u32>();
+
+ LOG_DEBUG(Service_APT, "called app_id=0x%08X, attributes=0x%08X", app_id, attributes);
+
+ auto* const slot_data = GetAppletSlotData(attributes);
+
+ // Note: The real NS service does not check if the attributes value is valid before accessing
+ // the data in the array
+ ASSERT_MSG(slot_data, "Invalid application attributes");
+
+ if (slot_data->registered) {
+ IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
+ rb.Push(ResultCode(ErrorDescription::AlreadyExists, ErrorModule::Applet,
+ ErrorSummary::InvalidState, ErrorLevel::Status));
+ return;
+ }
+
+ slot_data->applet_id = static_cast<AppletId>(app_id);
+ slot_data->attributes = attributes;
+
IPC::RequestBuilder rb = rp.MakeBuilder(1, 3);
rb.Push(RESULT_SUCCESS);
- rb.PushCopyHandles(Kernel::g_handle_table.Create(notification_event).Unwrap(),
- Kernel::g_handle_table.Create(parameter_event).Unwrap());
-
- // TODO(bunnei): Check if these events are cleared every time Initialize is called.
- notification_event->Clear();
- parameter_event->Clear();
-
- ASSERT_MSG((nullptr != lock), "Cannot initialize without lock");
- lock->Release();
-
- LOG_DEBUG(Service_APT, "called app_id=0x%08X, flags=0x%08X", app_id, flags);
+ rb.PushCopyHandles(Kernel::g_handle_table.Create(slot_data->notification_event).Unwrap(),
+ Kernel::g_handle_table.Create(slot_data->parameter_event).Unwrap());
}
void GetSharedFont(Service::Interface* self) {
@@ -120,7 +250,12 @@ void GetLockHandle(Service::Interface* self) {
// this will cause the app to wait until parameter_event is signaled.
u32 applet_attributes = rp.Pop<u32>();
IPC::RequestBuilder rb = rp.MakeBuilder(3, 2);
- rb.Push(RESULT_SUCCESS); // No error
+ rb.Push(RESULT_SUCCESS); // No error
+
+ // TODO(Subv): The output attributes should have an AppletPos of either Library or System |
+ // Library (depending on the type of the last launched applet) if the input attributes'
+ // AppletPos has the Library bit set.
+
rb.Push(applet_attributes); // Applet Attributes, this value is passed to Enable.
rb.Push<u32>(0); // Least significant bit = power button state
Kernel::Handle handle_copy = Kernel::g_handle_table.Create(lock).Unwrap();
@@ -133,10 +268,22 @@ void GetLockHandle(Service::Interface* self) {
void Enable(Service::Interface* self) {
IPC::RequestParser rp(Kernel::GetCommandBuffer(), 0x3, 1, 0); // 0x30040
u32 attributes = rp.Pop<u32>();
+
+ LOG_DEBUG(Service_APT, "called attributes=0x%08X", attributes);
+
IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
- rb.Push(RESULT_SUCCESS); // No error
- parameter_event->Signal(); // Let the application know that it has been started
- LOG_WARNING(Service_APT, "(STUBBED) called attributes=0x%08X", attributes);
+
+ auto* const slot_data = GetAppletSlotData(attributes);
+
+ if (!slot_data) {
+ rb.Push(ResultCode(ErrCodes::InvalidAppletSlot, ErrorModule::Applet,
+ ErrorSummary::InvalidState, ErrorLevel::Status));
+ return;
+ }
+
+ slot_data->registered = true;
+
+ rb.Push(RESULT_SUCCESS);
}
void GetAppletManInfo(Service::Interface* self) {
@@ -154,22 +301,27 @@ void GetAppletManInfo(Service::Interface* self) {
void IsRegistered(Service::Interface* self) {
IPC::RequestParser rp(Kernel::GetCommandBuffer(), 0x9, 1, 0); // 0x90040
- u32 app_id = rp.Pop<u32>();
+ AppletId app_id = static_cast<AppletId>(rp.Pop<u32>());
IPC::RequestBuilder rb = rp.MakeBuilder(2, 0);
rb.Push(RESULT_SUCCESS); // No error
- // TODO(Subv): An application is considered "registered" if it has already called APT::Enable
- // handle this properly once we implement multiprocess support.
- bool is_registered = false; // Set to not registered by default
+ auto* const slot_data = GetAppletSlotData(app_id);
- if (app_id == static_cast<u32>(AppletId::AnyLibraryApplet)) {
- is_registered = HLE::Applets::IsLibraryAppletRunning();
- } else if (auto applet = HLE::Applets::Applet::Get(static_cast<AppletId>(app_id))) {
- is_registered = true; // Set to registered
+ // Check if an LLE applet was registered first, then fallback to HLE applets
+ bool is_registered = slot_data && slot_data->registered;
+
+ if (!is_registered) {
+ if (app_id == AppletId::AnyLibraryApplet) {
+ is_registered = HLE::Applets::IsLibraryAppletRunning();
+ } else if (auto applet = HLE::Applets::Applet::Get(app_id)) {
+ // The applet exists, set it as registered.
+ is_registered = true;
+ }
}
+
rb.Push(is_registered);
- LOG_WARNING(Service_APT, "(STUBBED) called app_id=0x%08X", app_id);
+ LOG_DEBUG(Service_APT, "called app_id=0x%08X", static_cast<u32>(app_id));
}
void InquireNotification(Service::Interface* self) {
@@ -864,14 +1016,23 @@ void Init() {
screen_capture_post_permission =
ScreencapPostPermission::CleanThePermission; // TODO(JamePeng): verify the initial value
- // TODO(bunnei): Check if these are created in Initialize or on APT process startup.
- notification_event = Kernel::Event::Create(Kernel::ResetType::OneShot, "APT_U:Notification");
- parameter_event = Kernel::Event::Create(Kernel::ResetType::OneShot, "APT_U:Start");
+ for (size_t slot = 0; slot < applet_slots.size(); ++slot) {
+ auto& slot_data = applet_slots[slot];
+ slot_data.slot = static_cast<AppletSlot>(slot);
+ slot_data.applet_id = AppletId::None;
+ slot_data.attributes = 0;
+ slot_data.registered = false;
+ slot_data.notification_event =
+ Kernel::Event::Create(Kernel::ResetType::OneShot, "APT:Notification");
+ slot_data.parameter_event =
+ Kernel::Event::Create(Kernel::ResetType::OneShot, "APT:Parameter");
+ }
// Initialize the parameter to wake up the application.
next_parameter.emplace();
next_parameter->signal = static_cast<u32>(SignalType::Wakeup);
next_parameter->destination_id = static_cast<u32>(AppletId::Application);
+ applet_slots[static_cast<size_t>(AppletSlot::Application)].parameter_event->Signal();
}
void Shutdown() {
@@ -879,8 +1040,12 @@ void Shutdown() {
shared_font_loaded = false;
shared_font_relocated = false;
lock = nullptr;
- notification_event = nullptr;
- parameter_event = nullptr;
+
+ for (auto& slot : applet_slots) {
+ slot.registered = false;
+ slot.notification_event = nullptr;
+ slot.parameter_event = nullptr;
+ }
next_parameter = boost::none;
diff --git a/src/core/hle/service/apt/apt.h b/src/core/hle/service/apt/apt.h
index 1067548534..96b28b438a 100644
--- a/src/core/hle/service/apt/apt.h
+++ b/src/core/hle/service/apt/apt.h
@@ -72,6 +72,8 @@ enum class SignalType : u32 {
/// App Id's used by APT functions
enum class AppletId : u32 {
+ None = 0,
+ AnySystemApplet = 0x100,
HomeMenu = 0x101,
AlternateMenu = 0x103,
Camera = 0x110,
@@ -83,6 +85,7 @@ enum class AppletId : u32 {
Miiverse = 0x117,
MiiversePost = 0x118,
AmiiboSettings = 0x119,
+ AnySysLibraryApplet = 0x200,
SoftwareKeyboard1 = 0x201,
Ed1 = 0x202,
PnoteApp = 0x204,
@@ -119,8 +122,9 @@ enum class ScreencapPostPermission : u32 {
namespace ErrCodes {
enum {
ParameterPresent = 2,
+ InvalidAppletSlot = 4,
};
-}
+} // namespace ErrCodes
/// Send a parameter to the currently-running application, which will read it via ReceiveParameter
void SendParameter(const MessageParameter& parameter);